This hardly warrants a new thread, but you know on a dual pivot caliper where the brake cable is clamped on to the quick release - well, my front brake actually opens the quick release during normal braking. Not all the way, but enough to be annoying. If I then close it, firstly it will bounce back a bit, then as soon as I squeeze the lever it will open quite a bit more. The quick release bit seems really loose, but there doesn’t appear to be a bolt or anything to tighten.
Does the cable need more tension to keep it in the closed position? Is there some way of tightening the quick release? Caliper needs replacing?
I’m a little concerned that if I need to stop in a hurry it may open all the way and render my braking useless.
You know the bit where you clamp the cable; does that freely rotate on the quick release bit? Looking at some dual pivots now, I kinda think that maybe if that bit didn’t freely rotate, maybe it’d pull open the quick release under tension.
^ It would be about 5/6 years old - I guess that’s pretty old for a crappy Tektro caliper that’s had a lot of use. I run 28’s - could probably squeeze them out without the quick release. It’s my daily driver, so I’ve got Gatorskins on it that rarely puncture. touches head
Will probably just run it open and keep my eye out for a replacement caliper.
I had an issue with a tektro mid-reach (57mm) caliper that was doing something similar. It was pretty much brand new and would flip open under braking if it wasn’t super snugly done up. It only happened once but once was enough. Replaced with Shimano.
^ Can remember old mate Heatseeker used to run his brakes open when racing crits - something about them being less sensitive(?) Still doesn’t explain a roll down Beach Rd, but hey, you never know when a race is about to break out.
So, just to flog a dead horse, my rear brake just kinda sits there looking pretty, could I transplant that to the front? I’ll need to swap the bolt over - is that straight forward? Or would it be easier to swap the cam arm over?